Device for heat sealing seams



June 21, 1949. M. srAw 2,473,552

DEVICE FOR HEAT SEALING SEAMS Filed March 12, 1947 2 Sheets-Sheet 1 INVENTOR. No1-1R15 S'IAw June 21, 1949. M. sTAw DEVICE FOR HEAT SEALINGSEAMS 2 Sheets-Sheet 2 Filed March l2. 1947 JNVENTOR.

MORRIS 5TM Patented June 21, 1949 UNITED STATES PATENT OFFICE DEVICE FORHEAT sEALlNG sEAMs Morris Staw., Forest Hills, N. Y. Application March12, 1947, Serial No. 734,058

3 Claims.

This invention relates to a device for heat sealing lapped seams withoutshine and more particularly an ironing board which is particularlyadapted for effecting the heat sealing of a garment.

It is an object of the present invention to provide an ironing boardwhich will be particularly adapted to receive material which is to beheat sealed along a curved line or seam such as in the forming ofraincoats and other weather-proof garments, which is done by the addingof heat to make the connection of the overlapped pieces.

It is another object of the present invention to provide an apparatuswherein the cloth adapted to lie over the goods being worked upon willbe retained at all times in a suspended condition over the ironing boardso as to not require that the same be handled at any time as the partsare being heat treated and wherein it is only necessary to extend theiron over the top of the cloth and to draw the cloth down upon thesurface being heat treated.

Other objects of the present invention are to provide an ironing boardwith a curved top adapted to be used for forming curved seams which isof simple construction, inexpensive to manufacture and eiiicient inoperation.

According to the invention, there is provided a top which will haveseveral curve formations therein of similar contour to the curved seamto be formed by the application of heat over overlapped pieces lyingupon the top of the ironing surface. This ironing top is supported uponpedestals which can be rested upon a flat surface.

According to one form of the invention, the top part is generally ofU-shape with the free ends of the legs curved laterally. In anotherform, the top part has been shaped as a letter S with one part curved orextended more than the other part for opposite ends. This S-shaped topcan likewise be supported upon pedestals raised from a flat supportingsurface.

In another form, there is provided a U-shaped member which not only hasthe ends or legs curved laterally but also has the ends curved upwardlyso as to provide a support for a complex seam.

In order that th cloth adapted to be put over the portions of thematerial being heat treated will be ever present and such that by theapplication of the iron it can be extended onto the pieces being heattreated and wherein there is no necessity that the cloth be handled, thecloth is extended between two upright supports and is connected theretoby elastic pieces. As the iron is 2 dropped down into the cloth, thecloth will be extended over the ironing board having the materialsthereon to be heat treated and lying beneath the cloth.

For further comprehension of the invention. and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a ma.- terlal part of thisdisclosure:

Fig. 1 is a perspective view of one form of the invention where the toppart is in one horizontal plane and is of U-shape with the ends of thelegs bent laterally.

Fig. 2 is a top plan view of the invention shown in Fig. 1.

Fig. 3 is a side elevational view of the form of the invention shown inFig. 1.

Fig. 4 is a top plan view of an S-shaped form of top.

Fig. 5 is a side elevational view of the form of the invention shown inFig. 4.

Fig. 6 is a perspective view of a form of the invention similar to thatshown in Fig. l but wherein the legs are curved vertically as well aslaterally.

Fig. 7 is an enlarged cross sectional view taken through the pedestaland illustrating one means of securing the pedestal to the top part.

Fig. 8 is a cross sectional view taken through the apparatus and throughthe ironing board to illustrate the operation of the apparatus and asviewed on line 8-8 of Fig. 3.

Fig. 9 is a top plan view of the apparatus looking down into the clothwhich is extended between upright supports by elastic strips.

Fig. 10 is a perspective view of the special iron used in carrying outthe process.

Fig. 11 is a side elevational view of the iron shown in Fig. 10.

Fig. 12 is a transverse cross sectional view taken on line l2-I2 oi Fig.11.

Fig. 13 is an end elevational view of the iron.

Referring now particularly to Figs. 1 to 3, there is shown a top part l5of generally U-shape having a closed curved end I6 and legs l1 which arelaterally curved as indicated at I8. These curved legs are supportedupon pedestals 2l having bases 22. With curves formed as shown, there isprovided a better surface on which curved seams of material such asWeather-proofing material can be disposed when being heat treated toseal the overlapping portions of the pieces together. The

3 seam can be curved and all of the overlapping portions will lie on thetop of the top part evenly and squarely when the heat treating operationis being formed.

Referring now to Figs. 4 and 5, there is shown another form of theinvention where the top part is in the form of a letter 8. as indicatedat 2l, and this top part can have one end curved, as indicated at 24, toa greater extent than the opposite end 2l. The top part 23 is likewisesupported upon pedestals 2i with, bases 22.

Referring now to Fig. 6, there is shown still another form of theinvention which is similar to Fig. 1 except that the curved portions I8are upwardly curved, as indicated at 21, as well as being laterallycurved. This will provide for a better surface of certain goods orshapes which must necessarily have a compound curve seam.

Referring now to Fig. 7, there is shown an enlargement of the pedestal2|. This pedestal 2i has a small opening ll therethrough upwardlythrough which extends a securing bolt 32 adapted to engage with a bolt33 embedded in the under face of the top part. The base 22 is recessed,as indicated at 33'. to receive head 34 of bolt 32.

Referring now particularly to Figs. 3, 8 and 9, there is shown theapparatus utilized .for effecting the ironing operation. The ironingboard is installed .on a table I2 from which there extends upwardlyupright members 43 and 44 between which there is suspended elasticmembers or pieces il supporting a cloth 4t. By depressing the cloth withan iron 41, the heat will be applied to the goods being heat treated andthe iron will draw thecloth downwardly thereover so asv not to apply theheat directly to the goods. When the iron-41 is taken up the cloth I6will be returned to a raised position and access is readily had to theheat treated goods on the ironing board. At no time is it necessary toarrange or rearrange the cloth 46. The cloth 46 is totally suspendedbetween the upright members 43 and 44 and by the elastic members orpieces. The elastic pieces cause the cloth to be raised. The overlappedpieces are indicated at 48 and 49.

Referring now to Figs. to 13, there is shown the iron Il which isspecially designed for this particular kind of work. This iron l1 hasthe usual handle 5I and a heat control device 52. The iron is narrow andis turned up at the forward end. Contact projections 53 extend upwardlyfrom the rear of the iron and are adapted to receive a wire receptacleconnected with a wall plus.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the -right is reserved to allchanges and modifications coming within the scope of the invention asdeiined in the appended claims.

Having thus described my invention. what I claim as new and desire tosecure by United States Letters Patent is:

1. In combination with a table having a at top surface, pedestalsextended vertically from the top surface of the table substantiallymidway between the ends thereof, a padded pressing board mounted on theupper ends of said pedestals and upon which pieces of material to beheat treated may be placed with their adjacent edges overlapped, uprightmembers mounted on the ends of the table on diametrically opposite sidesof said 4 preing board between the upper ends of said upright members.and means resiliently support ing said pressing cloth between the upperends of said upright members, *whereby an iron rested on pressing board,a pressing cloth disposed over said said pressing cloth will lower saidpressing cloth onto said pressing board to heat seal the adjacent edgesof the pieces of material sandwiched between the adjacent faces of saidpressing board and the lowered pressing cloth.

2.' In combination with a table having a fiat top surface, extendedvertically from the top surfacebf the table substantially midway betweenthe ends thereof, a padded pressing board mounted on the upper ends ofsaid pedestals and upon which pieces of material to be heat treated maybe placed with their adjacent edges overlapped. upright members mountedon the ends of tba table on diametrically opposite sides of said press-`ing board. a pressing cloth disposed over said pressing board betweenthe upper ends of said upright members, and means resiliently supportingsaid pressing cloth between the upper ends oi said upright members,whereby an iron rested on said pressing cloth will lower saidpressingcloth onto said pressing board to heat seal the adjacent edges of thepieces of material sandwiched between the adjacent faces of saidpressing board and the lowered 'pressing cloth, said resilientsupporting means comprises elastic members connected between oppositesides oi' said pressing cloth andl the upper ends of said uprightmenibers.

3. As a new article of manufacture, a pair of upright members forattachment at their lower ends to opposite ends of a table, a pressingcloth for disposition over the top surface of the table between theupper ends of said pair of upright members, elastic members connectedbetween opposite sides of said pressing cloth and the upper ends of saidupright members resiliently supporting said pressing cloth, a pair ofspaced pedestals for positioning on the top face of the table betweensaid upright members and beneath said pressing cloth, and a paddedpressing board mounted on the upper ends of said pedestals and havingits upper surface spaced from the bottom face of said pressing cloth,whereby pieces of material may be placed on said pressing board with thepressing cloth in its raised position and with the adjacent edges of thepieces overlapped after which said pressing cloth may be lowered ontothe overlapped edges under the weight of a heated iron rested on the topface of said pressing cloth to heat seal the overlapped edges as theheated iron is moved to and fro over the top facs of said pressingcloth.

MORRIS STAW.

REFERENCES CITED The following referer-:loes are of record in the illeof this patent:

UNITED STATES PATENTS Number Name Date 439,286 Wood Oct. 28, 18901,899,067 'Irumbull Feb. 28, 1933 2,013,004 Marcellitti Sept. 3, 19352,096,750 Lawrence Oct. 26, 1937 2,108,372 Fulps Feb. 15, 1938 FOREIGNPATENTS Number Country Date 283,506 Italy Mar. 13, 1931

